Visible gap on volume button side in s20fe5g, also device is heating

[humble-fool]

Edit: guys I have placed replacement order on Amazon, thanks to everyone for helping me out. 

Hi guys, recently I have bought se20fe 5g from Amazon. Everything is working great but I have observed few things

1) there is a visible gap on volume button side, can anybody confirm it's common among all s20fe devices or should I place return request, as return window is near requesting to reply asap, for reference I'm adding some pics 

2) Though on spec sheet barometer sensor is mentioned, no app is able to detect barometer sensor in my phone. 

3) device is getting quite hot even with normal usage, even after updating & downloading all the updates heating is not gone and I can see temp rising till 44-46°c on cpuz application.

It would be great if other fellow users can share their opinions, thanks in advance. 

[onlyashu19]

You mentioned for old piece that "temp rising till 44-46°c on cpuz application" . Was this battery temp or cpu temp ? Because to me it only shows battery temp in cpuz application, not cpu temp.